Enable following special 4 ports concurrency for HST:
(SAP+STA) (2.4G MAC SCC)+(SAP+STA) (5G MAC SCC).
1. Update pcl table for fourth connection
2. Increase max connection number to 4
3. Add concurrency allow check for 4 ports
Change-Id: Ib87bcfd845208f0ed8821c7e18b2f30833db22b7
CRs-Fixed: 2457713